128 citations · 593 across the 12 of their papers we have counts for
12 papers
Doping induced Mott collapse and the density wave instabilities in (SrLa)IrO
Zhenyu Wang, Daniel Walkup, Yulia Maximenko +5
The path from a Mott insulating phase to high temperature superconductivity encounters a rich set of unconventional phenomena involving the insulator-to-metal transition (IMT) such…
Disorder induced power-law gaps in an insulator-metal Mott transition
Zhenyu Wang, Yoshinori Okada, Jared O'Neal +11
A correlated material in the vicinity of an insulator-metal transition (IMT) exhibits rich phenomenology and variety of interesting phases. A common avenue to induce IMTs in Mott i…
The influence of electron-doping on the ground state of (Sr{1-x}La{x})2IrO4
Xiang Chen, Tom Hogan, D. Walkup +11
The evolution of the electronic properties of electron-doped (Sr{1-x}La{x})2IrO4 is experimentally explored as the doping limit of La is approached. As electrons are introduced, th…
Nanoscale Determination of the Mass Enhancement Factor in the Lightly-Doped Bulk Insulator Lead Selenide
Ilija Zeljkovic, Kane L Scipioni, Daniel Walkup +10
Bismuth chalcogenides and lead telluride/selenide alloys exhibit exceptional thermoelectric properties which could be harnessed for power generation and device applications. Since…
Dirac mass generation from crystal symmetry breaking on the surfaces of topological crystalline insulators
Ilija Zeljkovic, Yoshinori Okada, Maksym Serbyn +12
The tunability of topological surface states (SS) and controllable opening of the Dirac gap are of fundamental and practical interest in the field of topological materials. In topo…
Mapping the unconventional orbital texture in topological crystalline insulators
Ilija Zeljkovic, Yoshinori Okada, Cheng-Yi Huang +11
The newly discovered topological crystalline insulators (TCIs) harbor a complex band structure involving multiple Dirac cones. These materials are potentially highly tunable by ext…
Carrier localization and electronic phase separation in a doped spin-orbit driven Mott phase in Sr3(Ir1-xRux)2O7
Chetan Dhital, Tom Hogan, Wenwen Zhou +13
Interest in many strongly spin-orbit coupled 5d-transition metal oxide insulators stems from mapping their electronic structures to a J=1/2 Mott phase. One of the hopes is to estab…
Imaging the evolution of metallic states in a spin-orbit interaction driven correlated iridate
Yoshinori Okada, Daniel Walkup, Hsin Lin +9
The Ruddlesden-Popper (RP) series of iridates (Srn+1IrnO3n+1) have been the subject of much recent attention due to the anticipation of emergent physics arising from the cooperativ…
Ripple modulated electronic structure of a 3D topological insulator
Yoshinori Okada, Wenwen Zhou, D. Walkup +3
3D topological insulators, similar to the Dirac material graphene, host linearly dispersing states with unique properties and a strong potential for applications. A key, missing el…
Visualizing Landau levels of Dirac electrons in a one dimensional potential
Yoshinori Okada, Wenwen Zhou, Chetan. Dhital +5
Using scanning tunneling spectroscopy we have measured the response of Dirac electrons in a magnetic field to the presence of a well-defined smoothly varying 1D periodic potential.…
One-dimensional channel for Dirac electrons in a 3D topological insulator
Yoshinori Okada, Wenwen Zhou, Chetan. Dhital +5
Topological insulators represent a new state of matter where the topological nature of the bulk bands dictates the existence of a surface state with unique properties. These materi…
Observation of novel interference patterns in Bi2-xFexTe3+d by Fourier transform scanning tunneling spectroscopy
Y. Okada, C. Dhital, Wen-Wen Zhou +8
In topological insulators (TI), strong spin-orbit coupling results in non-trivial scattering processes of the surface states, whose effects include suppressed back scattering1, 2,…